package com.gzcss.gulimall.product.service.impl;

import com.alibaba.cloud.commons.lang.StringUtils;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.gzcss.common.constant.ProductConstant;
import com.gzcss.gulimall.product.dao.AttrAttrgroupRelationDao;
import com.gzcss.gulimall.product.dao.AttrGroupDao;
import com.gzcss.gulimall.product.dao.CategoryDao;
import com.gzcss.gulimall.product.entity.*;
import com.gzcss.gulimall.product.service.CategoryService;
import com.gzcss.gulimall.product.vo.AttrRespVo;
import com.gzcss.gulimall.product.vo.AttrVo;

import com.gzcss.gulimall.product.vo.attrGroupRelationVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.gzcss.common.utils.PageUtils;
import com.gzcss.common.utils.Query;

import com.gzcss.gulimall.product.dao.AttrDao;
import com.gzcss.gulimall.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;


@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {

    @Autowired
    AttrAttrgroupRelationDao attrAttrgroupRelationDao;

    @Autowired
    AttrGroupDao attrGroupDao;

    @Autowired
    CategoryDao categoryDao;

    @Autowired
    CategoryService categoryService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    @Transactional
    public void saveAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        //BeanUtils.copyProperties(attr,attrEntity);
        BeanUtils.copyProperties(attr,attrEntity);
        //保存基本数据
        this.save(attrEntity);
        //保存关联关系
        if(attr.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() && attr.getAttrGroupId() != null ){
            AttrAttrgroupRelationEntity attrAttrgroupRelationEntity = new AttrAttrgroupRelationEntity();
            attrAttrgroupRelationEntity.setAttrGroupId(attr.getAttrGroupId());
            attrAttrgroupRelationEntity.setAttrId(attrEntity.getAttrId() );
            attrAttrgroupRelationDao.insert(attrAttrgroupRelationEntity);

        }

    }

    @Override
    public PageUtils queryBaseAttr(Map<String, Object> params, Long catelogId, String type) {
        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>().
                eq("attr_type","base".equalsIgnoreCase(type)?ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode():ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());

        if(catelogId != 0){
            queryWrapper.eq("catelog_id",catelogId);
        }
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            queryWrapper.and((wrapper)->{
                wrapper.eq("attr_id",key).or().like("attr_name",key);
            });
        }

        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                queryWrapper
        );
        PageUtils pageUtils = new PageUtils(page);
        List<AttrEntity> records = page.getRecords();

        List<AttrRespVo> respVos = records.stream().map((attrEntity -> {
            AttrRespVo attrRespVo = new AttrRespVo();
            BeanUtils.copyProperties(attrEntity, attrRespVo);

            //设置分组和分类的名字
            if("base".equalsIgnoreCase(type)){
                AttrAttrgroupRelationEntity attr_id = attrAttrgroupRelationDao.selectOne(
                        new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
                if (attr_id != null ) {
                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attr_id.getAttrGroupId());
                    if(attrGroupEntity != null){
                        attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                    }
                }
            }
            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
            if (categoryEntity != null) {
                attrRespVo.setCatelogName(categoryEntity.getName());
            }
            return attrRespVo;
        })).collect(Collectors.toList());

        pageUtils.setList(respVos);

        return pageUtils;
    }

    @Override
    public AttrRespVo getAttrInfo(Long attrId) {
        AttrEntity attrEntity = this.getById(attrId);
        AttrRespVo attrRespVo = new AttrRespVo();
        BeanUtils.copyProperties(attrEntity,attrRespVo);


        if(attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //设置分组信息
            AttrAttrgroupRelationEntity attrgroupRelationEntity = attrAttrgroupRelationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
            if(attrgroupRelationEntity != null){
                attrRespVo.setAttrGroupId(attrgroupRelationEntity.getAttrGroupId());
                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupRelationEntity.getAttrGroupId());
                if(attrGroupEntity != null ){
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }
        }

        //设置分类信息
        Long catelogId = attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.findCatelogPath(catelogId);
        attrRespVo.setCatelogPath(catelogPath);

        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        if(categoryEntity != null){
            attrRespVo.setCatelogName(categoryEntity.getName());
        }

        return attrRespVo;
    }

    @Transactional
    @Override
    public void updateAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        this.updateById(attrEntity);
        if(attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //1、修改分组信息
            AttrAttrgroupRelationEntity attrgroupRelationEntity = new AttrAttrgroupRelationEntity();
            attrgroupRelationEntity.setAttrGroupId(attr.getAttrGroupId());
            attrgroupRelationEntity.setAttrId(attr.getAttrId());

            Long attrCount = attrAttrgroupRelationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
            if(attrCount > 0){
                attrAttrgroupRelationDao.update(attrgroupRelationEntity,new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attr.getAttrId()));
            }else{
                attrAttrgroupRelationDao.insert(attrgroupRelationEntity);
            }
        }


    }

    /**
     *
     * 根据分组ID查找关联的属性
     * @param attrgroupId
     * @return
     */
    @Override
    public List<AttrEntity> getRelationAttr(Long attrgroupId) {
        List<AttrAttrgroupRelationEntity> entities = attrAttrgroupRelationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));
        List<AttrEntity> attrEntities = new ArrayList<>();
        if(entities.size() > 0 ){
            List<Long> attrIds = entities.stream().map((attr) -> {
                return attr.getAttrId();
            }).collect(Collectors.toList());

             attrEntities = this.listByIds(attrIds);
            return attrEntities;
        }

        return attrEntities;
    }

    @Override
    public void deleteRelation(attrGroupRelationVo[] vos) {

        List<AttrAttrgroupRelationEntity> entities = Arrays.asList(vos).stream().map((iteam) -> {
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(iteam, relationEntity);
            return relationEntity;
        }).collect(Collectors.toList());


        attrAttrgroupRelationDao.deleteBatchRelation(entities);
    }

    /**
     * 获取当前分组没有关联的熟悉
     * @param params
     * @param attrgroupId
     * @return
     */
    @Override
    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
        //1、当前分组只能关联自己所属的分组里面的所有属性
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();
        //2、当前分组只能关联别的分组没有引用的属性
        //2.1)、当前分类下的其他分组
        List<AttrGroupEntity> group = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id",catelogId));
        List<Long> collect = group.stream().map((item) -> {
            return item.getAttrGroupId();
        }).collect(Collectors.toList());

        //2.2)、这些分组关联的属性
        QueryWrapper<AttrAttrgroupRelationEntity> AttrRelotionWrapper = new QueryWrapper<AttrAttrgroupRelationEntity>();
        if(collect !=null && collect.size() >0){
            AttrRelotionWrapper.in("attr_group_id", collect);
        }
        List<AttrAttrgroupRelationEntity> groupId = attrAttrgroupRelationDao.selectList(AttrRelotionWrapper);

        List<Long> attrIds = groupId.stream().map((item) -> {
            return item.getAttrId();
        }).collect(Collectors.toList());

        //2.3)、从当前分类的属性中移除这些属性
        QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
        String key = (String) params.get("key");
        if(attrIds != null && attrIds.size() >0){
            wrapper.notIn("attr_id", attrIds);
        }
        if(!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
                w.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), wrapper);
        PageUtils pageUtils = new PageUtils(page);

        return pageUtils;

    }

    @Override
    public List<Long> selectSearchAttrids(List<Long> attrids) {
        return baseMapper.selectSearchAttrids(attrids);

    }


}
